Available for sale securities continuous unrealized loss position less than twelve months aggregate losses accumulated in investments.

No definition available.

+ Details

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- Definition

Available for sale securities continuous unrealized loss position twelve months or longer aggregate losses accumulated in investments.

+ References

No definition available.

+ Details

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- Definition

This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

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- Definition

+ References

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Marketable Investments - Summary of Gross Unrealized Losses and Market Value of Available-for-Sale Securities with Unrealized Losses (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value	$ 15,426	$ 30,645
Available for sale securities, Less Than 12 Months, Unrealized Losses	33	92
Available for sale securities, 12 Months or Greater, Market Value
Available for sale securities, 12 Months or Greater, Unrealized Losses
State and Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value
Available for sale securities, Less Than 12 Months, Unrealized Losses
Available for sale securities, 12 Months or Greater, Market Value
Available for sale securities, 12 Months or Greater, Unrealized Losses
Federal Agency and Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value	15,426	30,645
Available for sale securities, Less Than 12 Months, Unrealized Losses	33	92
Available for sale securities, 12 Months or Greater, Market Value
Available for sale securities, 12 Months or Greater, Unrealized Losses